[(4R,5S,6S)-4-acetyloxy-3-dodecyl-6-[[(2R,3S,4R,5S,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]methyl]-5,6-dihydro-4H-pyrrolo[1,2-c]triazol-5-yl] acetate | 1337559-41-7

• 分子结构分类: 有机化合物
• 英文名称: [(4R,5S,6S)-4-acetyloxy-3-dodecyl-6-[[(2R,3S,4R,5S,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]methyl]-5,6-dihydro-4H-pyrrolo[1,2-c]triazol-5-yl] acetate
• CAS: 1337559-41-7
• 化学式: C₅₆H₇₁N₃O₉
• 分子量: 930.194
• InChiKey: OFFUKGLPOUBSFK-MMOZGJAGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.9
• 重原子数：
  68
• 可旋转键数：
  30
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  130
• 氢给体数：
  0
• 氢受体数：
  11

反应信息

• 作为产物：
  描述：

  1-deoxy-1-[(2'S,3'S,4'R)-2'-azido-3',4'-diacetoxyoctadec-5'-ynyl]-2,3,4,6-tetra-O-benzyl-α-D-galactopyranose 以 甲苯 为溶剂， 以100%的产率得到[(4R,5S,6S)-4-acetyloxy-3-dodecyl-6-[[(2R,3S,4R,5S,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]methyl]-5,6-dihydro-4H-pyrrolo[1,2-c]triazol-5-yl] acetate
  参考文献：
  名称：

  Total Synthesis of α-1C-Galactosylceramide, an Immunostimulatory C-Glycosphingolipid, and Confirmation of the Stereochemistry in the First-Generation Synthesis

  摘要：

  A nonisosteric alpha-C-glycoside analogue of KRN7000 (alpha-1C-GalCer, 1) was reported to induce a selective type of cytokine release in human invariant natural killer cells in vitro. We report here a very concise synthetic route to 1 and its analogue 1'. The key steps include olefin cross-metathesis, Sharpless asymmetric epoxidation, and epoxide opening by NaN3/NH4Cl. Inversion of configuration at the amide-bearing carbon in the phytosphingosine backbone constructed by epoxide opening in our previous synthesis of 1 was verified, indicating that remote group participation is not involved during the epoxide-opening reaction.

  DOI：

  10.1021/jo201450s